I've always liked chocolate tangs. I got one myself about 3 months ago, it was one of the last "common" tangs that I had never kept in an aquarium. They are great fish, and the caudal spine is very small, I'm hoping that signifies that they arent as aggressive and "mean" as some of the tangs that have large ones, although that's just a wish at this point but I hope time proves me correct.